BTF20

Butterfly Valve – Lug Type

Series	BTF20
Standard	DIN / JIS
Pressure rating	PN6, PN10, PN16, JIS 5K, JIS 10K, JIS 16K
Size range	DN40…DN700
Connection	Lug
Body material	Ductile cast iron (GGG40) / Carbon steel (EN 10025 S 275 JR)
Class	DIN PN6/PN10/PN16; JIS 5K/10K/16K
Stem Pattern	Square
Options	Other materials, flange connections
Operation options	Lever, Gearbox, Hydraulic, Pneumatic or Electric actuator

No.	Part	Material
	Body	Ductile cast iron (GGG40) / Carbon steel (EN 10025 S 275 JR)
	Shaft	Stainless steel (AISI 406)
	Disc	Stainless steel (AISI 316) / Aluminum Bronze Casting (Alu/Br CC333G) / Super Duplex (1.4469)
	Seat	EPDM (-20 ºC +110 ºC) / EPDM HT (+30 ºC +130 ºC) / NBR (-10 ºC +90 ºC) / Silicone MVQ (-60 ºC +200 ºC) / Viton FPM (-15 ºC +210 ºC)

Part	Material	Standard / temperature
Body	Grey cast iron	EN-GJL-250
Body	Nodular cast iron	EN-GJS-400-15
Body	Carbon steel	ASTM A216 WCB
Disc	Stainless steel	ASTM A351 CF8
Disc	Stainless steel	ASTM A351 CF8M
Disc	Aluminium alloy	EN AC-44100
Disc	Nodular cast iron	EN-GJS-400-15
Disc	Nodular cast iron, EPDM coated	EN-GJS-400-15 + EPDM
Disc	Tin / aluminium bronze	CuSn10-C / CuAl10Fe5Ni5-C
Disc	Carbon steel	ASTM A216 WCB
Disc	Duplex	ASTM A743 CD4MCuN
Disc	Super duplex	1.4469
Disc	Austenitic stainless steel	904L
Liner / seat	EPDM	-20 / +110 °C
Liner / seat	EPDM high temperature	+80 / +130 °C
Liner / seat	EPDM drinking water (WRAS, KTW, W270)	-20 / +95 °C
Liner / seat	EPDM food grade (FDA)	-20 / +110 °C
Liner / seat	NBR (nitrile)	-10 / +90 °C
Liner / seat	NBR food grade (FDA)	-10 / +90 °C
Liner / seat	Hydrogenated NBR	-10 / +90 °C
Liner / seat	Silicone (VMQ)	-60 / +200 °C
Liner / seat	Viton (FPM)	-15 / +210 °C
Liner / seat	Viton GF (FPM)	-5 / +210 °C
Liner / seat	Hypalon (CSM)	-25 / +125 °C
Liner / seat	Epichlorohydrin (ECO)	-40 / +125 °C

Body and disc can be coated with epoxy, Rilsan (polyamide 11) or Halar.

DN	L	JIS 5K ØK	JIS 10K ØK	JIS 16K ØK	PN6 ØK	PN10 ØK	PN16 ØK	B	A	E	E1	F	ISO	G
40	33	95	105	105	100	110	110	54	110	30	16	11x11	F07	90
50	43	105	120	120	110	125	125	59	120	30	16	11x11	F07	90
65	46	130	140	140	130	145	145	66	135	30	16	11x11	F07	90
80	46	145	150	160	150	160	160	91	141	30	16	11x11	F07	90
100	52	165	175	185	170	180	180	105	165	30	16	11x11	F07	90
125	56	200	210	225	200	210	210	125	180	33	18	14x14	F07	90
150	56	230	240	260	225	240	240	136	193	33	18	14x14	F07	90
200	60	280	290	305	280	295	295	156	225	33	18	17x17	F07	90
250	68	345	355	380	335	350	355	210	283	30	23	22X22	F10	130
300	78	390	400	430	395	400	410	240	308	30	23	22X22	F10	130
350	78	435	445	480	445	460	470	263	339	31	-	22X22	F10	160
400	102	495	510	540	495	515	525	308	380	31	-	27X27	F12	160
450	114	555	565	605	550	565	585	340	381	38	-	36X36	F14	190
500	127	605	620	660	600	620	650	380	433	38	-	36X36	F14	210
600	154	715	730	770	705	725	770	440	494	80	-	46X46	F16	210
700	165	820	840	875	810	840	840	485	560	106	-	46X46	F25	300

L Face to FaceØK Bolt Circle Diameter per flange standardF Stem squareISO ISO 5211 top flangeG Top flange Ø

Part	Options
Body	Ductile cast iron (GGG40); Carbon steel (EN 10025 S 275 JR)
Shaft	Stainless steel (AISI 406)
Disc	Stainless steel (AISI 316); Aluminum Bronze Casting (Alu/Br CC333G); Super Duplex (1.4469)
Seat	EPDM (-20 ºC +110 ºC); EPDM HT (+30 ºC +130 ºC); NBR (-10 ºC +90 ºC); Silicone MVQ (-60 ºC +200 ºC); Viton FPM (-15 ºC +210 ºC)

Overview